Subtract 21/7 from 15/16
1st number: 15/16, 2nd number: 3 0/7
15/16 - 21/7 is -33/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
15/16 = 15 × 7/16 × 7 = 105/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
21/7 = 21 × 16/7 × 16 = 336/112 - Subtract the two like fractions:
105/112 - 336/112 = 105 - 336/112 = -231/112 - After reducing the fraction, the answer is -33/16
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